“IMPLEMENTASI MODEL EJAS BERBASIS MATHEMATIC EDUTAIMENTUNTUK MENINGKATKAN PRESTASI BELAJAR DAN PERILAKU KEPEDULIAN TERHADAP LINGKUNGAN”. EduMa: Mathematics Education Learning and Teaching, vol. 5, no. 2, Dec. 2016, pp. 34-41, https://doi.org/10.24235/eduma.v5i2.1174.